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The ACT XACT Prolite Flywheel for 2001–2006 BMW M3 (E46) is ACT's lightest flywheel offering, engineered for the lowest inertia to maximize throttle response and acceleration. Intended for road racing or rally use where responsiveness is prioritized, the Prolite maintains strength and heat tolerance through careful material distribution and remains serviceable and resurfaced without requiring extra parts.
ACT 01-06 BMW M3 E46 XACT Flywheel Prolite
